What was so special about the way Sai Baba greeted Kaka Mahajani's friend that it made him forget his skepticism?

The greeting was special because it was a deeply personal and miraculous event that bypassed the friend's intellectual defenses. The friend, as described in Chapter 35, was a doubter with a 'clinical curiosity' who had resolved not to bow. When he set foot in the mosque, Baba called out to him. What was astonishing was not just the words, but the voice itself. The text emphasizes that it was a 'perfect imitation of his father's exact vocal style.' Hearing the charming tone of his deceased father's voice from Sai Baba's mouth was a magical and amazing experience for the friend. As Chapter 35 highlights, this personal connection made him 'melt inside' and forget his firm resolve, leading him to bow in spontaneous reverence.